TkInter wrapper for tcl/tk GUI

I wanted to see how the tcl/tk interface of ASCEND looks like and used TkInter wrapper to call the tcl legacy code.

Here are my notes which I will formulate in detail over time:

ascend/tcltk/tk/

AscendRC
ascend.tcl	env(ASCENDTK)
GlobalProc.tcl	set_global_defaults Glob_do_GNU set_Template_defaults asc_swap_del_backspace -> GlobalProc.tcl ; set to "1" for unix systems set_Global_Defaults {} { __userdata_init
View.tcl
main.tcl	load_Templates Util_do_Read

ascend/tcltk/interface:

config.h
main.c	main() This function creates a Tcl interpreter, initializes Tcl and Tk, initializes the Ascend data structures, sets up the user's environment, sources ASCEND's startup script, and calls Tk_MainLoop so the user can interact with ASCEND. Cleans up and exits the program when Tk_MainLoop returns. This function is based on the functions Tk_Main and Tcl_AppInit from the Tk8.0 distribution. See the files tkMain.c and tkAppInit.c in the Tk sources.
Commands.c	__userdata_init
Driver.c	AscDriver()

Changes made to the codebase to get the GUI up and running with TkInter

ASC_IMPORT??? -> Definition at line 124 of file ascend/general/platform.h

ASCENDTK -> This environment variable is used to define the location of the Tcl/Tk support files used by the ASCEND Tcl/Tk GUI. It defaults to $ASCENDDIST/TK. It has no effect on the PyGTK GUI.

asc_swap_del_backspace -> set to "1" for unix systems

__userdata_init --> commented out

       argc --> set argument counter to 0

       tktable missing --> install via sudo apt-get install tk-table
       
       ascend still can't find tktable
       --> install tcl8.5-dev, tk8.5-dev, libxft-dev, libfontconfig1-dev, libfreetype6-dev, libpng-dev

error because interval.c and interval.h files were missing (trunk bramch) in ascend/compiler/

error: if {[catch {package require Tktable 2.8} err]} in ascend.tcl --> http://bugs.ascend4.org/view.php?id=254 --> https://github.com/nbro/tktable/issues/3

       --> The plot window and the solver window require the
           TkTable exension package by Roland King
           mthomas 98.05.07: require 1.8 until we debug the memory errors in 2.0
       --> commented the if clause in Line 225 in ascend.tcl

       bitmap "feet" not defined 

--> ascend.tcl line 259: awin all --> awin is in GlobalProc.tcl

       --> ShowWindow.solver in line 108 in GlobalProc.tcl
       --> line 138 in solver.tcl
       --> option -bitmap {feet} was removed because it couldn't be located
       --> option -bitmap {stop} was removed

       *** Error calling set_Library_Defaults
       invalid command name "libr_query"
       ***
       *** Error calling set_Probe_Defaults
       invalid command name "__probe"
       ***
       *** Error calling set_Solver_Defaults
       invalid command name "slv_available"
       ***
       *** Error calling set_Units_Defaults
       can't read "env(ASCENDDIST)": no such variable
       ***
       *** Error calling set_Help_Defaults
       can't read "env(ASCENDDIST)": no such variable
       ***